Well-pulling apparatus



1,505,007- c. E. cox ET AL WELL PULLING APPARATUS Aug. 12, .1924. Q

' Filed June 6, 1922 4 Sheets-Sheet 1 v (Zara/253E. 60,21, and flmar Z. fawn.

mowliou:

Aug. 12. 1924;

c. E. cox ET AL WELL PULLING APPARATUS Filed me 6, 1932 4 Sheets-Sheet. 2

I wmwtoua [Kare/7:4 Z1". 02: and

Omar E. Jones Aug. 12,1924 1,505,007

c. E. cox ET AL WELL PULLING APPARATUS Filed June 6, 1922 4 Sheets-Sheet 5 nuwwtou Aug. 2. 1924; 1,505,007

C. E. COX ET AL WELL PULLING APPARATUS ?/IIIIIIII IIIIIIIIIIIIIIII// 9 f i/IIIIIIIIIIIIIIIl/IIIIIII/ a: I I I I Z5 (fir/222a? if fax and 0mm 2?. farms. 3'5

Patented Aug. 12, 1924.

UNITED, STATES v 1,505,007 PATENT OFFICE- CLARENCE E. X, 01 WARREN, OHIO, AND OMAR E. JONES, OF FRANKLIN,

PENNSYLVANIA.

I WELL-PULLING APPARATUS.

Apnlication filed June 6,

To all whom it may concern:

Be it known that we, CLARENCE E. Cox,

and OMAR E. Jones, citizens of the United States, residing at Warren and Franklin, in the counties of Trumbull and Venango and States of Ohio and Pennsylvania, have invented certain new and useful Improvements in Well-Pulling Apparatus, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention comprises a well pulling apparatus. While unrestricted in its application, it is especially adapted for use in placing and removing sections of pipe used in the construction and drilling of wells and the like.

It is contemplated among the objects of the invention, to provide an apparatus which may be moved from place to place under its own power, this same power being also utilized-to place and operate the various components of the apparatus; to provide a mast, mounted in telescoping sections on the apparatus in such a way that it may be extended to carry a line for placing or removing pipe sections; to provide a winding drum in driving connection with the source of power, for lifting the mast into place and raising and lowering the pipe sections; and to provide means for screwing and unscrewing the pipe sections, all of these components being arranged on a tractor in compact arrangement and readily assembled and dismounted.

It is contemplated as a further object of the invention to provide a controlling instrumentality for the power, and pipe-screwing devices which will be simple and all so interconnected that one operator may easily handle all of thein.

Other objects and advantages will in part be apparent and in part brought out more fully in the description which follows.

An embodiment of the invention is illustrated in the accompanying drawings, the following views being shown:

Figure 1 is a view in side elevation of an embodiment of the apparatus, the mast being in folded position and the pipe-screwing device being lowered;

Fig. 2 is a view in top plan, portions being broken away, and showing the gearing and controlling instrumentalities which regulate the operation of the various components; I

Fig. 3 is a view in front elevation, the

1922. Serial no. 666,262.

pipe-screwin .instrumentality being removed and s owing the winding drum, the controlling instrumentality, and gearing, the position of the mast when extended being indicated in dotted lines;

Fig. 4 is a view in top plan of the pipescrewing instrumentality, a portion being broken away;

Fig. 5 is a view of the same in longitudinal section on the line 55, Fig. 4:;

Fig. 6 is a detail view in vertical section through the winding drum and its driving connections Fig. 7 is a detail view partly in section and partly broken away to show the construction and arrangement of the components of the folding mast;

Fig. 8 is a detail view in vertical section showing means for locking the mast sections in extended position; and

Fig. 9 is a detail view of reduction gearing placed between the engine drive and the driven shaft.

In these views, 1 represents a base or support, in this instance wheeled and upon which is mounted a source of power or engine 2, which is utilized to move the apparatus from place to place and operate the various components.

The drive shaft of the engine is connected, through reduction gears 3'(Figs. 1 and 9), with a second shaft which carries a drivingpinion 4. This is in mesh with a gear 5 car ried on and secured to a cross-shaft 6, suitably journaled on the base. Upon this crossshaft 6 is loosely mounted a sleeve 7 (Fig. 6), carrying a drum 8, the outer surface of which is a brake and the inner surface of which is a clutch lining, cooperatin with an expanding ring 9. This is operate by arms secured to a collar 10 keyed to the cross-shaft 6, and operated by a sleeve 11 through a spanner lever 12. When the parts are in the position shown in Fig. 6, the drum is se-- cured to the cross-shaft 6 through the instrumentalities just described and rotates with this shaft in a clockwise direction (Figs. 1 and 2). Means are also provided for reversing the rotation of this drum, and as here shown comprise a'combined clutch and driving-member 13 secured to the cross-shaft 6. This has an outer friction surface which is ada ted to cooperate with a corresponding surface on a movable friction wheel 14. This latter is keyed to a shaft 15 mounted for swinging movement on the base, just sufficiently to bring the wheel 14 into and out of enga ement with the friction surface of the 'member 13. There is a sprocket-wheel 16 mounted on this shaft 15 and connected by a chain. with a second sprocket 17 secured to the drum 8. v

Means are provided for moving the wheel 14 into and out of engagement with the member 13. As here shown, these comprise a cross-rod 18 suitably mounted on the base and rotatable by means of an operating lever 19 (Figs. 2 and 6). On this rod are arms 20, one of which is connected by a link 21 with the support for shaft 15, and the other of which is connected to a brake-band 22, by means of a link 23. This brake-band is on the outside of the drum 8, and acts as a brake under certain conditions later to be described. The arrangement is such that when the lever 19 is moved in one direction, the reverse mechanism is operated, and when moved in the opposite direction, the brake is applied. On the sleeve 7 which carries the drum 8, there is also keyed a drivepinion 24 which is in mesh with a gear-wheel 25. This latter is eyed to a cross-shaft 26 which supports a windin drum 27. This drum is of two sizes for slow or fast'winding, and may be connected to or disconnected from the gear 25 as by a sliding-bolt 28, engaging 2. lug or projection on the drum.

e mechanism just described is utilized to drive the drum in two directions or hold it through the brake, and this driving action is utilized to operate certain parts of the apparatus which will now be described.

On standards 29 extending upwardly from the base there is mounted a superstructure or frame, for supporting a mast when in folded position and its component parts. At one end of this superstructure there is a cross-shaft 30 upon which is pivotally mounted the lower portion of a mast 31. This lower section has secured, intermediate its ends, depending arms 32, which are connected, as by ropes, with small winding drums 33 mounted on the drum-supporting shaft 26. The arrangement is such that when the drum-shaft is rotated, the mast section will be swung upwardly through the pull of the ropes on mthe arms 32. 'When the mast is swung into approximately vertical position, a base or bracing section, indicated in dotted lines in Fig. 3 and designated by numeral 33, is adapted to be secured to the swinging section to support the mast from the ground.

The mast itself is composed of telescopin sections best seen in Fig. 7. It is mounte on a cross-bar carried by the lower swingin section, and has a series of pulleys 34 aroun which a rope is wound, one end of this rope being attached to a collar 35 on the topsection and theother end being adapted to be tion carries a sheave 39 around which there is adapted to pass a rope or the like (not shown), and which may be secured to the winding drum. for the purpose of raisin or lowering sections of pipe or the like w ich may be operated on. When not in use as a braoe,.the lower section 33 may be placed on the superstructure, as indicated in Fig. 1.

Means are provided for screwing pipe sections and, as here shown, comprise an outwardly-extending latform or framework 40 secured to the ront uprights 29. Pivotall mounted on this platform so as to be capa le of being swung upwardly toward the front of the apparatus is a sup ort 41, which carries the pipe-screwing mec anism. This is shown in detail in Figs. 4 and 5.

It comprises a casing 42 within which are mounted sprocket-wheels 43 around which a chain is wound, a portion of the chain being carried around one face of a pipe-screwing ear 44. This latter has a cut out section or the reception of a pipe and carries a pipe-clamping instrumentality 45 which may be used in either direction to screw or unscrew a pipe section. The gear 44 and its parts are mounted for rotation in a supporting casing 46.

Means are provided for driving the screwing device in either direction, and as here shown comprise a gear 47 secured to one of the sprocket wheels and driven by a worm 48. This is carried by a shaft 49 provided with toggles 50 to permit swinging of the platform 41 and operation of the screwing mechanism in various positions. This shaft is also telescopic for the same purpose. It is driven from cone gears 51 swingingly mounted on a support 52 and connected by a sprocket chain 52' which passes around gears mounted on shafts 53 which carry the cones. The cones are adapted to bear alternately against friction faces 53' disposed on the member 13, and means are provided for swinging them into and out of engagement therewith. As here shown, the support (or the cones is in the form of a triangle, best seen in Fig. 3. It is pivotally mounted at its lower apex on a shaft 54 which carries an operating arm 55. This arm is connected by a link 56 to the end 'of an operatinglever 57. This operating lever moves in a cross-like slot 59 in a plate 60 III and has a double movement. When moved in a horizontal direction, it operates either one of the cones to screw or unscrew the pipe sections, and when moved in a vertical direction, it functions to unclutch the drum 8 from the shaft 6. This is accomplished by mounting the operating lever on a crossshaft 61 plvotally disposed on the base. This shaft carries an arm 62 (see Figs. 2 and 3), which is connected by a link 63 to one end of a lever 63. The lever 63' is carried by a shaft 64 suitably mounted on the base, and the other end oflthe shaft carries the spanner 12 heretofore referred to, which operates the shifting sleeve 11.

The engine shaft may be connected to and disconnected from the reduction gears 3 in the usual manner, and this is not shown. When connected,these gears drive the crossshaft 6, and this in turn drives the winding drum. It may be driven in either direction, depending upon whether the drive is directly through the drum 8 and its clutch connection with the shaft 6, or through the member 13, friction-wheel 14, and its sprocket connections with the drum 8. The same is true of the screwing instrumentality, which may be driven'in either direction, depending'upon which one of the cones 51.is in engagement with the friction surfaces 53 on the member 13.

It will be apparent that the resent invention Provides a simple an practical means o attaining the objects set forth. While it has beendisclosed in the embodiment herein described, it will be understood that we do not wish to be limited to the precise form of this disclosure, as many changes in the construction and arrange ment of the parts are thought to be within the scope of the invention as set forth in the claims.

and placing pipe sections; and a support for a pipe wrench, comprising a frame, having a portion hingedly connected with the tractor wherebythe pipe wrench may be folded.

into a posltion to permit unobstructed use of the pipe-section-handling means.

2. A well-pulling apparatus comprising a connecting mechanism included in the driving mechanism to wrench.

3. A well-pullin apparatus comprising a tractor; a source 0 wer mounted thereon;

permit folding up of the means mounted on t e tractor for handling and placin pipe sections; a support for a pipe wrenc comprising a frame, having a portion hingedly connected with the tractor whereby the pipe wrench may be folded into a position to permit unobstructed use of the pipe-section-handling means; said support including members extending from the tractor; and corresponding members hin edly connected therewith and upon which the wrench is mounted, and associated together to constitute a wrench-carrying frame.

4. A well-pullin apparatus comprising a tractor; a source 0 power mounted thereon; means mounted on the tractor for handling and placin pipe sections; a support for a pipe wrenc ,comprising a frame, having a portion hingedly connected with the tractor whereby the pipe wrench may be folded into a position to permit unobstructed use of the pipe-section-handling means; said support mcluding members extendin from the tractor; corresponding members lnngedly connected therewith an upon which the wrench is mounted and associated together to, constitute a wrench-carrying frame; and a member disposed on the tractor and adapted to engage a portion of the wrench-frame to limit its movement and hold it in operative position to act on a pipe section.

In testimony whereof we afiix our signatures in presence of two witnesses.

. CLARENCE E. COX.

OMAR E. JONES.

w Enwm A. Hrooms, K. P. Rooms. 

